This version of Euclid is based upon Todhunter's 1867 edition. It includes all of Euclid Books 5 and 6 (6.27-29 omitted as per usual); 90 problems with hints, diagrams and solutions; and an appendix of definitions, postulates, and axioms. A notation of geometric algebra is taught which removes the ambiguities of natural language descriptions. But the text's chief concern is the teaching of how to solve problems through geometric proofs.
This volume completes Everymind's Euclid and is, to my knowledge, the first new version of this much Euclid since Loney's reworking of Todhunter's Euclid in 1903. I came to Euclid late, long after my degree in mathematics, and it filled a void I hadn't known I'd had. From first cracking open the Elements until completion of this volume has been almost three years. What a wild rocket-ride this has been. -- R. Earle Harris 09nov18